What USFederal Law Established a National Minimum Wage for Employees Involved

Multiple Choice

What U.S.federal law established a national minimum wage for employees involved in commerce (rather than just those employed by companies working for the U.S.government) ,as well as prohibit most employment of minors in oppressive child labor?

A) The Equal Pay Act of 1963
B) The Civil Rights Act of 1964
C) The Fair Labor Standards Act of 1938
D) The Family and Medical Leave Act of 1993